“Yes, I’m ready,” Warren said. “I am ready to get in this fight and work my heart out for Hillary Clinton to become the next president of the United States and to make sure that Donald Trump never gets any place close to the White House.”

Sarandon has been one of Bernie Sanders’s most vocal celebrity backers. In April, during an interview on Stephen Colbert’s The Late Show, Sarandon said she’s “more afraid” of Clinton than she is of presumptive GOP nominee Donald Trump’s proposed border wall, and expressed doubts about Clinton’s “moral judgment.”

Clinton was booed during a primary debate in April over her refusal to release transcripts of speeches she gave to major Wall Street firms, including Goldman Sachs.

In March, Sarandon told MSNBC’s Chris Hayes that she just can’t see herself voting for Hillary Clinton.

“I think Bernie would probably encourage people to [support Hillary if he loses] because he doesn’t have any ego in this thing,” she said. “But I think a lot of people are, ‘Sorry, I just can’t bring myself to [vote for Hillary].'”